The strange case of VB6 prompting to repair VS 2010 when MZ-Tools 3.0 is loaded

I have got a new laptop (an Apple MacBook Air 11″) and after installing BootCamp, Windows 7, VB6, VS 2005, 2008 and 2010, yesterday I noticed that when loading MZ-Tools 3.0 for VB6, it prompted to repair Visual Studio 2010. I had received the same or similar issue from 2 or 3 users these last years that I never knew how to solve, so I could only recommend to repair or reinstall Office, VB6 ,etc. Today I have investigated more and it seems that there are multiple causes but one of them documented by Heath Stewart was certainly my case:

How to work around the issue when opening Office applications repairs Visual Studio

That is, if there was an external drive connected when you installed Visual Studio, you get the issue when you load some Office application, or some application using VB/VBA. Of course this issue doesn’t happen if you install from the DVD, because the drive (typically D:) will be there always, but it happens if you have an external drive connected, specially if that is the drive where you are installing from!. It happened that other times I copied the setups to the internal hard drive before installing Visual Studio, but since the MacBook Air has only 128 GB of internal hard drive, I installed from an external drive.

That said, the workaround proposed in the post didn’t work for me. I guess that using the variable %ProgramFiles% on my Windows 7 64-bit rather than %ProgramFiles(x86)% didn’t help. Anyway, I got it so messed that finally I had to uninstall completely VS 2005, 2008 and 2010, which is a horrible experience because you have to uninstall lots and lots of separate setups (Visual Studio is by far the worst product regarding uninstallation). Then I started again the installations, but this time copying the media to the internal hard disk (it is a good thing to have USB 3.0 technology). And now I have 27 updates to install from Windows Update, but the issue is solved.

I hope this help others, and myself in the future 😉

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